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TROUBLESHOOTING GUIDE
T
R
SYMPTOM:
O
HIGH PRESSURE, Continued
U
B
L
E
S
LOW PRESSURE:
H
Internal Status Indicators:
O
RED: On GREEN: On
( LX Control Board )
O
T
RED: One (1) Flash
I
GREEN : One (1) Flash
N
(Integrated Sensor Board)
(LX SMT Board)
G
Unit plugged in, power switch
on, continuous audible alarm. Com-
pressor shut down (Failure to cycle
due to low pressure).
NOTE: REFER TO THE REPAIR/REPLACEMENT GUIDE IN THIS MANUAL FOR PROPER
TROUBLESHOOTING GUIDE
PROBABLE CAUSE:
2.
b. Bad Coil.
3. Sieve Beds.
Contaminated.
1. Inlet Filter
Dirty or Plugged.
2. Compressor.
a. Leaks at fittings or tubing.
b. Leaking or defective relief
valve.
c. Insufficient voltage at outlet.
d. Worn Cup Seals or Gaskets.
3. Heat Exchanger
a. Leak at tubing or body cham-
ber.
b. Inspect tubing and heat
exchanger.
4. Regulator cracked or leaking.
5. P.E. Valve leaking.
REPLACEMENT OR ADJUSTMENT PROCEDURES
2b.Replace 4-way Valve (PROCE-
3. Replace Sieve Beds (PROCE-
1. Replace Inlet Filter (PROCE-
2a.Replace or repair.
2b.Repair leak or replace.
2c.DO NOT use extension cords.
2d.Rebuild Top End of Compressor
3a.Replace or retighten.
3b.Replace or retighten tubing. Re-
4. Replace (PROCEDURE 6).
5. Replace P.E. valve. Check volt
NOTE: Check for leaks starting at
the compressor output through
all the pneumatic connections.
Major leaks will cause system
pressures to remain below
adequate shift (exhaust) pres-
sures and will cause compressor
shut down.
16
SOLUTION:
DURE 16).
DURE 4).
DURE 2).
Use another outlet.
(PROCEDURE 2).
place Heat Exchanger (PROCE-
DURE 8).
age at P.E. valve connector on 24
volt D.C. scale. The P.E.
valve activates or energizes
approximately 1 second prior to
the activation of the 4-way
Valve with approximately 24
volts. If voltage is in excess of 24
volts consistently, replace the
P.C. Board. If the P.C. Board
voltage acts normally, replace the
P.E.valve (PROCEDURE 3).
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